World Health Organization. (1993). How to investigate drug use in health facilitie: Selected drug use indicators. Ginebra: WHO.
Citación estilo ChicagoWorld Health Organization. How to Investigate Drug Use in Health Facilitie: Selected Drug Use Indicators. Ginebra: WHO, 1993.
Cita MLAWorld Health Organization. How to Investigate Drug Use in Health Facilitie: Selected Drug Use Indicators. Ginebra: WHO, 1993.
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